Analysis of a transposable element in Caenorhabditis elegans.

Abstract
A transposable element, designated Tcl, was characterized in C. elegans. Tcl is 1.7 kilobases long, has an inverted terminal repeat of < 100 base pairs and is repeated as a highly conserved element. The copy number and genomic positions of Tcl are extremely variable among strains, implying that Tcl is mobile. Progeny of interstrain crosses did not show hybrid dysgenic traits that might be due to Tcl transposition.